![]() ![]() BIOS update file provided by HP contains ME region as well as expected BIOS region but while flashing it using a HP UEFI flash menu invoked by pressing Esc - ME region stays intact in spite of an unlocked write-unprotected ME region, I don’t know why.Original BIOS file is signed by HP, so HP user tools won’t flash a modified BIOS it because of the signature mismatch unless you’ll find out how to generate the proper signature: you may need a quantum computer for that in case HP uses a strong signature. Maybe ME region could be updated only by HP DOS update tool provided with the BIOS file or even only under Windows using their Windows tool from the same package. I’ve lost so much time playing around, that at the end of the day it was easier to build a complete flash image for me from several pieces.Since both MMTool and UEFITool were generating image files with some discrepancies and senior members of the forum were telling me that they don’t see any problems - I’ve decided that I need to dump the whole SPI flash image for a backup purpose in a worst case scenario, not only some specific regions of a flash memory.įlash Programming Tool was used for that but it won’t succeed to read a ME region unless you unlock it. ![]()
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